Water

Question 1

Hydrophilic

Answer 1

Bond to water

Question 2

Do not bond to Water

Answer 2

Hydrophobic

Question 3

Water characteristics

Answer 3

High specific heat
Cohesion/ adhesion
Solvent
Surface tension

Question 4

Solvent

Answer 4

The ability of dissolving other polar molecules

Question 5

Sphere of hydration

Answer 5

Molecules surround the compound ( what happens during saturation)

Question 6

Atoms or groups break off and form ions

Answer 6

Disassociation

Question 7

Surface tension

Answer 7

The ability to withstand rupturing when placed under tension

Question 8

Percentage of Hydrogen
-7 acidic
7 neutral
+7 alkaline

Human is 7.35-7.4

Answer 8

PH

Question 9

Base

Answer 9

Decrease the amount H+ ions present

Question 10

Acid substance

Answer 10

Increases the amount H+ ions present

Question 11

Water specific heat

Answer 11

One calorie to heat
Highest off all molecules
586 cal to break heat energy to break the hydrogen bonds

Question 12

Buffer

Answer 12

Homeostasis to ensure that acidic levels are normal

Question 13

Water molecules expand and become less dense.

Answer 13

Why does ice float

Question 14

Why does water racists change

Answer 14

The specific heat. Water resist change because it’s temperature is high of specific heat.
High specific heat because of hydrogen bonding

Question 15

Evaporative cooling

Answer 15

Helps stabilize temperature in organisms and bodies of water

Question 16

Heat of vaporization

Answer 16

Transfer of a substance from liquid to gas.

Amount of heat that a liquid must absorb for 1g to be converted

Question 17

Solution

Answer 17

Liquid that is completely homogenous mixture of substances

Question 18

Aqueous solution

Answer 18

Water is the solvent of a solution

Question 19

Cohesion of water

Answer 19

Collectively hydrogen bonds hold water molecules together -Cohesion

Question 20

Adhesion

Answer 20

An attraction between different substances for example between water and plant cell walls

Question 21

Why does ice float

Answer 21

Hydrogen bonds are more ordered when frozen making ice less dense

Water reaches greatest density at 4•Celsius

Question 22

Do strong acids and strong bases disassociate completely in water

Answer 22

Yes

Question 23

pH = -(-7)=7

Answer 23

10^-7 neutral

Question 24

What type of bond is water?

What type of molecule is it and why?

Answer 24

Covalent bond and polar molecule.
The hydrogen and oxygen share electron.
The hydrogen spends more time with the oxygen.